The Geology of Canary Islands. www.islandsinocean.com

The Canary Islands, located between 100 and 500 km from the
coast of northwestern Africa (Morocco), consist of seven major volcanic
islands forming a rough west-southwest to east-northeast trending
archipelago. Together with the Selvagen Islands and a group of seven
major seamount complexes (some of which were former Canary Islands) to
the northeast, they form the Canary volcanic province. Volcanism in this
∼800-km-long and ∼400-km-wide volcanic belt (located at 33–27° N and
18–12° W) decreases in age from the northeast (Lars Seamount, 68 million
years) to the southwest (Hierro Island, 1 million years) and is
interpreted to represent the Canary hotspot track (Fig. 1). The Canary
volcanic province is located on Jurassic ocean crust (∼150 million years
old beneath the western part of the province to ∼180 million years old
beneath the eastern part of the province), and contains some of the
oldest ocean crust preserved in ocean basins.

GEOLOGICAL OVERVIEW OF THE EVOLUTION OF THE ISLANDSThe morphology of the Canary morphology of the Canary
volcanic province show systematic changes from southwest to northeast,
reﬂecting an increase in age (Figs. 1) and a change in evolutionary
stage. As the volcanoes age, they originally go through a constructive
phase of evolution in which growth of the ediﬁce through volcanic
activity outpaces its destruction through mass wasting (e.g.,
landsliding) and erosion.

martes, 18 de octubre de 2016

Simple Present FROM HTTPS://MAGOOSH.COM

Form: Use the base form of a verb, adding an /s/ to the end of the verb if the subject
is singular. (Unless the verb is irregular, in which case other rules may apply.)Uses:Use 1: Actions that are habitual or routine EXAMPLES: The sun rises. I brush my teeth twice a day.Use 2: General, timeless factsEXAMPLES: Spiders make webs. Babies drink milk.Use 3: Narrative style (used when recalling past events or announcing things that are
happening in the moment)EXAMPLES: So I go to the store yesterday, and the clerk says “We’re closed!” Hehits the baseball out of the field and makes a home run!Use 4: The “real” present (things that are happening right now), but ONLY when the
verb is stative. Stative verbs deal with the way the subject is, instead of what the
subject does. EXAMPLES: That car looks old. They think that’s a bad idea.

Present Perfect

Form: Have or has + past form of a verb Uses:Use 1: Actions that started in the past, continue into the present, and may continue
into the futureEXAMPLES: The children have felt sick ever since they ate lunch. My neighbor haslived next door to me for two years.Use 2: Separate actions that happened in the past and may happen again in the
futureEXAMPLES: That man has traveled overseas several times. We have eaten at thatrestaurant once or twice.Use 3: Recently completed actions that still influence things happening in the
presentEXAMPLES: The sun has risen and you need to wake up. They have finished theirmeeting, so now they can go.

Present Continuous

Form: The present tense of “to be” (am/is/are)+ verb + ing Uses:Use 1: The “real” present (things that are happening right now), for all verbs except
stative verbs EXAMPLES: I am sitting down right now. He can’t come to the phone because he isworking. You can’t see the children because they are hiding.Use 2: Temporary actions that may not be happening right now, but have not yet been completedEXAMPLES: I am taking an English course. The truck is being repaired. Plans arebeing made.

jueves, 6 de octubre de 2016

There are certain words in English that are usually followed by an
infinitive or gerund. If you are not sure whether to use the infinitive
or gerund, check out our lists or look the words up in a dictionary.From www.ego-4U.com